The Imposters (1998)

After the 1930s, the luxury-ship-stowaway comedy fell, more or less, into remission until Stanley Tucci (who wrote, directed, and stars here) concocted this happy vaudeville about two lousy thespians (Tucci and Oliver Platt) who find themselves, quite by accident, on a cruise ship among European anarchists, spies, grieving ex-royalty, a pompous theater star (Alfred Molina), a suicidal nightclub singer named Happy Franks (Steve Buscemi), and sundry other broadly played types (including a Nazi-esque ship officer, triumphantly personified by Campbell Scott). It’s so unpretentious and dizzy, the entire cast conga-lines right off the set at the end, to boppin’ tango music.